/******************************************************************
 * Created by: DO HOANG HAI                                       
 * Date of Creation:                                               
 * Date of last modification: 1st/Sep/2007
 *                                                                
 * Description:                                 
 * ...
 ******************************************************************/

using System;
using System.Collections.Generic;
using System.Text;

namespace Pbdms.DataAccess
{
    public class DBNull
    {
        public const String NullString = "";
        
        
    }
}
